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Water extraction press membranes

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Water extraction press membranes

Postby Allen1967 » Tue Sep 12, 2017 3:41 am

We want to invest in a new water extraction press for industrial laundry washing. In the past, we had to replace the membranes of the water extraction press on a regular basis. Does anyone know recommendable suppliers of membranes for water extraction presses? Does it make sense to purchase a press from a specific manufacturer where replacement of membranes is uncomplicated and rather cheap? Thank you for your help!
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Re: Water extraction press membranes

Postby suds-n-blood » Tue Sep 12, 2017 2:33 pm

Allen1967 wrote:We want to invest in a new water extraction press for industrial laundry washing. In the past, we had to replace the membranes of the water extraction press on a regular basis. Does anyone know recommendable suppliers of membranes for water extraction presses? Does it make sense to purchase a press from a specific manufacturer where replacement of membranes is uncomplicated and rather cheap? Thank you for your help!


First and foremost please provide additional information on the presses you had that went through membranes so quickly. That will help form a basis for information exchange. what was the normal life you received on a membrane?
Next, what type of goods do you process? That too can have an effect on the membrane life.
Now to the meat of the answers...
Today's manufacturers of presses have made good improvements in the press heads / membranes they use. This combination has increased the general life of the membrane. Some manufacturers have even gone away from the 'traditional water filled' membrane to a composite fill of soft rubber discs, to ground-up rubber pellets as the filler. There are pros and cons to each method.
Finally, press efficiency is factored on the removal of residual moisture, on this many factors are involved; goods type, temperature, pressure of the ram, time, and basket cylinder design to name a few.
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Re: Water extraction press membranes

Postby Allen1967 » Wed Sep 13, 2017 3:32 am

So far we had a Jensen SEP 50 HD in place, but we need to increase capacity now. Our main customers are restaurants and hotels. We ordered our membranes from MAXI PRESS, a supplier of membranes for all big water extraction press manufacturers. Their normal life was up to 6 months.

What experience do you have when it comes to life time of membranes? Which other suppliers of membranes do you know and which are recommendable?
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Re: Water extraction press membranes

Postby TUNNELTECH » Wed Sep 13, 2017 7:05 am

What was the cause of failure on your membranes? Those Maxi Press membranes last us more than a year running from 16 to 24 hours per day. Do you have a photo of a failed Membrane? There are a few reasons for premature failure.
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Re: Water extraction press membranes

Postby IronMaster » Wed Sep 13, 2017 9:11 am

@suds-n-blood: Which are those manufacturers going away from traditional water filled membranes?
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Re: Water extraction press membranes

Postby suds-n-blood » Wed Sep 13, 2017 9:26 am

IronMaster wrote:@suds-n-blood: Which are those manufacturers going away from traditional water filled membranes?


Milnor started using the soft rubber inserts a few years ago, and Jensen has recommended using a rubber compound (like playground mulch) mixed with water about the same time.
Kannegiesser has still stayed with the traditional water-filled membranes, as has Lavatec.
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Re: Water extraction press membranes

Postby Dan@Crescent » Wed Sep 13, 2017 11:43 am

we switched to using rubber discs in our milnor presses. the diaphrams last us a year or 18 months. I think its a special type of rubber, like gum rubber.
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Re: Water extraction press membranes

Postby suds-n-blood » Wed Sep 13, 2017 11:50 am

Dan@Crescent wrote:we switched to using rubber discs in our milnor presses. the diaphrams last us a year or 18 months. I think its a special type of rubber, like gum rubber.


Dan, when you use the gum rubber inserts, do you add any water to the membrane, or is it just the inserts that are in the membrane?
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Re: Water extraction press membranes

Postby Dan@Crescent » Wed Sep 13, 2017 4:53 pm

No water, rubber only. they are discs about 1" thick and fit perfectly inside the heads.(maxi press) It is probably a stack of 5-8 of them, I forget. I could ask where we acquired them if you like.
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Re: Water extraction press membranes

Postby CleaningTim » Thu Sep 14, 2017 2:47 am

Which alternative suppliers to Maxi Press do you guys know?
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